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avviddec: Enable FRAME based threaded decoding if upstream is not live

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If upstream is live we don't want FRAME based threaded decoding as
it adds latency.
This commit is contained in:
Sebastian Dröge 2013-04-23 14:10:54 +02:00
parent e8369557b0
commit 2d2c9b1aac
1 changed files with 25 additions and 8 deletions
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17
ext/libav/gstavviddec.c
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@ -426,6 +426,10 @@ gst_ffmpegviddec_set_format (GstVideoDecoder * decoder,
* supports it) */
ffmpegdec->context->debug_mv = ffmpegdec->debug_mv;
{
GstQuery *query;
gboolean is_live;
if (ffmpegdec->max_threads == 0) {
if (!(oclass->in_plugin->capabilities & CODEC_CAP_AUTO_THREADS))
ffmpegdec->context->thread_count = gst_ffmpeg_auto_max_threads ();
@ -434,7 +438,20 @@ gst_ffmpegviddec_set_format (GstVideoDecoder * decoder,
} else
ffmpegdec->context->thread_count = ffmpegdec->max_threads;
query = gst_query_new_latency ();
is_live = FALSE;
/* Check if upstream is live. If it isn't we can enable frame based
* threading, which is adding latency */
if (gst_pad_peer_query (GST_VIDEO_DECODER_SINK_PAD (ffmpegdec), query)) {
gst_query_parse_latency (query, &is_live, NULL, NULL);
}
gst_query_unref (query);
if (is_live)
ffmpegdec->context->thread_type = FF_THREAD_SLICE;
else
ffmpegdec->context->thread_type = FF_THREAD_SLICE | FF_THREAD_FRAME;
}
/* open codec - we don't select an output pix_fmt yet,
* simply because we don't know! We only get it